Can't access Internet from Macbook

I don’t seem to be able to access the Internet from my Macbook. It can ping IPs in the local network, but It can’t ping IPs on the Internet, or look up host names, though other computers can.

I have very very similar issue, look below with topic title: sleep mode:

I think this may have been caused by a latest update to software but since I have router only couple of days I cannot be sure.

Gonna make an actual link to there
Myself I set the router up just a day ago. Pretty sure it worked with the old router.